It could be a problem for the application (or the admin) when database tables next extent sizeis larger than the dbspace free size. Here is a example function/task for the IDS 11.X sysadmin database tocheck these events:

INSERT INTO ph_task(tk_name,tk_type,tk_group,tk_description,tk_execute,tk_start_time,tk_stop_time,tk_frequency)VALUES("check_table_extent1","TASK","TABLES","Checks that table next extent will fit into dbspace.","check_table_extent1",DATETIME(00:00:00) HOUR TO SECOND,NULL,INTERVAL ( 4 ) HOUR TO HOUR);